Vortex VIPER HD Product Manual page 3

Properly Focus the Binocular
For the best views, follow this two-step process to properly adjust
the center focus and diopter. Choose an object about 20 yards
away and stay in the same spot until you have adjusted the
binocular for your eyes.
1. Adjust the center focus. Start by closing
your right eye or covering the right
objective lens with your hand. Focus
your left eye on the object and adjust
the center focus wheel until the image
is in focus. Leave the center focus in
this position as you adjust the diopter.
2. Adjust the diopter. Start by closing your
left eye or covering the left objective
lens with your hand. Look through
your right eye, pull the diopter ring
(found on the right eyepiece) toward
your eye, adjusting the diopter until
the object is in focus. Then, push the
diopter ring back down to lock your
settings. Make note of this diopter
setting in case you need to set it again. From this point on, you
will only need to use the center focus wheel.
4
ACCESSORIES
GlassPak Binocular Harness
™
The GlassPak Binocular Harness stores and protects your
™
binoculars while keeping them close at hand for quick deployment.
Tethers attach to your binocular for added security against
accidental drops while the fully adjustable straps create a
comfortable fit.
Harness
Straps
Binocular
Tether Straps
VIPER
Binocular Case
5
® HD